.mysql {
    background-image: url(../img/MySQL.png);
    background-size: cover;
}

.mongodb {
    /*background: linear-gradient(to right bottom, rgba(121, 57, 57, 0.9),rgba(0,0,0,0)),url(../img/MongoDB.png) no-repeat center;*/
    background-image: url(../img/MongoDB.png);
    background-size: cover;
}

.redis {
    background-image: url(../img/Redis.png);
    background-size: cover;
}

.bairong {
    background-image: url(../img/Bairong.png);
    background-repeat: repeat;
    background-size: cover;
}

.hbase {
    background-image: url(../img/HBase.png);
    background-size: cover;
}

.http {
    background-image: radial-gradient(73% 147%, #EADFDF 59%, #ECE2DF 100%), radial-gradient(91% 146%, rgba(255, 255, 255, 0.50) 47%, rgba(0, 0, 0, 0.50) 100%);
    background-blend-mode: screen;
    background-size: cover;
}

.demo1 {
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
}
